The research paper investigates the impact of zeolites, specifically fly ash-based zeolites (FAZ) and commercial zeolites (CZ), on the nutrient uptake efficiency, soil quality, and growth of sweet potato (Ipomoea batatas L.). Conducted under pot culture conditions, the study utilized a completely randomized design with six treatments: two levels of FAZ (1% and 2%), pH-treated CZ at 1%, potassium-impregnated CZ (KCZ), zinc-impregnated CZ (ZnCZ), and a control without zeolite. The results indicated that the application of 1% FAZ significantly improved soil moisture by 20.9% and increased tuber yield by 57% compared to the control. The study highlighted that FAZ at 1% was superior in enhancing nitrogen (N) and phosphorus (P) uptake efficiency compared to higher levels and the control.
The introduction discusses the detrimental effects of excessive fertilizer use on soil quality and nutrient efficiency, emphasizing the potential of zeolites to improve nutrient retention and soil properties. The methodology involved synthesizing FAZ and evaluating its effects on soil characteristics and sweet potato growth through various measurements, including soil pH, electrical conductivity (EC), moisture content, and nutrient uptake.
Results showed that FAZ application raised soil pH and EC while enhancing moisture retention. The zeolites also influenced the exchangeable sodium and potassium levels, with FAZ showing a favorable impact on nutrient availability. Growth parameters such as leaf number, branch count, and vine length were positively affected by zeolite treatments, particularly FAZ. The study concluded that FAZ at a 1% application rate is beneficial for sweet potato cultivation in low-quality soils, suggesting its potential as a slow-release fertilizer.
This research paper is significant in the field of agricultural science, particularly in soil management and crop production. It contributes to ongoing discussions about sustainable agricultural practices by demonstrating how zeolites can enhance nutrient uptake efficiency and improve soil quality, especially in marginal soils. The findings are particularly relevant for regions where sweet potato is a staple crop, providing insights into alternative fertilization strategies that can lead to better yields and reduced environmental impact. The research underscores the importance of utilizing waste materials like fly ash in agriculture, promoting a circular economy approach. Readers, including researchers, agronomists, and farmers, can benefit from the practical applications of zeolite use in enhancing crop productivity and soil health.
